If i was to give you a 3 figure sum and you had to turn it into £10k...

drugs

£10k of christmes trees double your money

Pumpkin futures.

There was a guy in America who bought something on e bay for $1.50 , sold if for $3 , then just continually managed to make a profit on every transaction and finished up buying a house.

There is a book for sale on Amazon for £20 about making money from classifird ads. And lots more about Ebay.

link please niceone? u read it?

Not read it. I was just browsing this afternoon. Its called Making Money With Classified Ads. No idea if its any good.